Easily convert seconds to minutes.
Easily convert seconds to hours.
Easily convert seconds to weeks.
Easily convert seconds to months.
Easily convert seconds to years.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Check if the URL is cached or not by Google.
Get approximate IP details.
Take an IP and try to look for the domain/host associated with it.
Get all the HTTP headers that an URL returns for a typical GET request.
Get all possible details about an SSL certificate.